The hydrodynamic interactions between two pitching foils arranged in a side-by-side configuration are investigated numerically for a broad parameter space. This includes a range of Reynolds numbers between 1000 and 12 000, Strouhal numbers between 0.25 and 0.5, separation distances between $0.5c$ and $2c$, and phase differences between 0° and 180°. The propulsive performance of side-by-side foils are compared to an isolated foil over a range of Reynolds number and Strouhal number, which show a consistent impact on their performance. The system experiences thrust enhancements with increasing Reynolds number although the coefficient of power does not change significantly. The Strouhal number at which a drag producing foil transitions to a thrust generating foil increases for the by side-by-side configuration compared to a solitary oscillating foil. At higher Reynolds number, the difference on the transitioning Strouhal number is smaller. A new scaling model is developed for propulsive performance of side-by-side pitching foils for a range of Strouhal number, Reynolds number, separation distance, and phase difference. Moreover, the new scaling model well encompasses the performance characteristics of an isolated foil, representing the case of a very large (infinite) separation distance between the foils.

在一个广泛的参数空间中，以数值方式研究了以并排配置排列的两个俯仰叶片之间的流体动力学相互作用。这包括介于 1000 和 12  000之间的雷诺数范围、介于 0.25 和 0.5 之间的斯特劳哈尔数、之间的间隔距离$0.5C$ 和 $2C$，以及 0° 和 180° 之间的相位差。在雷诺数和斯特劳哈尔数的范围内，将并排箔片的推进性能与隔离箔片进行比较，这表明对其性能的影响是一致的。尽管功率系数没有显着变化，但系统会随着雷诺数的增加而增加推力。与单独摆动的水翼相比，并排配置的产生阻力的水翼过渡到产生推力的水翼时的斯特劳哈尔数增加。在较高的雷诺数下，过渡 Strouhal 数的差异较小。开发了一种新的缩放模型，用于在 Strouhal 数、雷诺数、分离距离和相位差范围内的并排俯仰翼片的推进性能。而且，